1.Remove the phone case
2.It’s normal for the phone to get warm if the phone gets warm during charging，playing games or watching videos，calling or using the Internet in a poor mobile network，for it consumes a lot of power. It is also recommended to make phone calls or using the Internet in an area with a strong signal. If the phone gets warmer over time or exceeds the normal operating range, you need to stop using the phone and let it rest for a while.
3.Restart the phone and make sure you have the latest version of Color OS.
If the issue persists, take your phone, proof of purchase, and warranty card to a nearby realme Customer Service Center for professional assistance.
